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| Registros recuperados: 17 | |
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| Altruda Filho,Luiz; Alves,Nilton. |
| The lateral pterygoid muscle, more specifically its superior head, as we know, is closely related to the temporomandibular joint (TMJ). Particularly in children, in contrast with what was observed in adults, these joints have been rarely studied, by the anatomic functional aspect, little knowing about its functions in the embryonic and fetal periods. We used, in this work, 12 fetuses ranging in age from 16 to 39 weeks of intrauterine life, where we observed that the superior head of the lateral pterygoid muscle is inserted in the disc and in the articular capsule, in all age groups studied, and also, that the fibers and the thickness of the articular disc is, as well as the articular capsule suffer modifications in accordance with the period of development |
| Tipo: Journal article |
Palavras-chave: Temporomandibular joint; Lateral pterygoid muscle; Temporomandibular joint disc. |
| Ano: 2006 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022006000500021 |
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| Lv,Xin; Li,Qiang; Wu,Shun; Sun,Jing; Zhang,Min; Chen,Yong-Jin. |
| Psychological factors can be correlated with temporomandibular disorders (TMDs), but the mechanisms are unknown. In the present study, we examined the microstructural changes and expression of proinflammatory cytokines in mandibular condylar cartilage of the temporomandibular joint (TMJ) in a psychological stress animal model. Male Sprague-Dawley rats (8 weeks old, 210 ± 10 g) were randomly divided into 3 groups: psychological stress (PS, N = 48), foot shock (FS, N = 24), and control (N = 48). After inducing psychological stress using a communication box with the FS rats for 1, 3, or 5 weeks, PS rats were sacrificed and compared to their matched control littermates, which received no stress and were killed at the same times as the PS rats. Body and adrenal... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Psychological stress; Temporomandibular joint; IL-1β; TNF-α. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2012001000013 |
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| Fuentes,R; Engelke,W; Bustos,L; Oporto,G; Borie,E; Sandoval,P; Garay,I; Bizama,M; Borquez,P. |
| Among structural alterations that can be a risk factor for temporomandibular joint disorder (TMD) is condylar asymmetry. In order to measure the condylar asymmetry index in panoramic x-rays quantitatively, two methods have been proposed: those of Habets and Kjellberg. The aim of this study was to determine whether the x-ray method of measuring condylar asymmetries in orthopantomographies presents a minor tendency to error due to slight displacements of the head in the horizontal plane. 30 patients between 18 and 25 years of age were assessed. Each of them underwent three panoramic x-rays in three different positions: orthoradial, and at 5 and 10 horizontal angles. Then the Habets and Kjellberg measurements were taken. Habets' technique did not show any... |
| Tipo: Journal article |
Palavras-chave: Temporomandibular joint; Mandibular condyle; Temporomandibular joint disorders; Facial asymmetry. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000300005 |
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| Iturriaga,Veronica; Vásquez,Bélgica; Manterola,Carlos; del Sol,Mariano. |
| The aim of this study was to perform a literature review regarding the role of hyaluronic acid (HA) in the homeostasis and therapeutics of temporomandibular joint (TMJ) osteoarthritis (OA). The TMJ has characteristics that give it special adaptation and recovery abilities, where HA plays a fundamental role in helping to maintain joint homeostasis, which is affected in pathological processes like OA. OA is a chronic degenerative multi-factor disease that can affect all the components of the synovial joints, causing degradation of the articular cartilage, extracellular matrix and breakage in the HA molecules. HA is a non-branched linear polysaccharide with viscosupplementation, anti-inflammatory, lubrication and pain relief effects; it also activates the... |
| Tipo: Journal article |
Palavras-chave: Hyaluronic acid; Osteoarthritis; Temporomandibular joint; Temporomandibular disorders; Viscosupplementation. |
| Ano: 2017 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000300012 |
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| Alves,Nilton. |
| The temporomandibular joint (TMJ) is a highly specialized articulation that differs from all the other synovial articulations for many reasons. In children, different from what we observe in adults, these articulations have rarely been studied under the morphofunctional aspect, mainly in the embryonary and fetal stages. In this study 10 fetuses with ages varying from 16 to 39 weeks of intrauterine life were used, and it could be observed that the fibers and thickness of the articular disc, as well as the articular capsule and the condylar process, suffer modifications according to age. It was also observed that the superior head of the lateral pterygoid muscle inserts itself in the articular disc and capsule in all the ages studied. Also, the maturation of... |
| Tipo: Journal article |
Palavras-chave: Temporomandibular joint; Embryonary development; Fetal development. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022008000200010 |
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| Benigno,Maria Ivone Mendes; Liberti,Edson Aparecido; Conde Jr,Airton Mendes; de Sousa Leal,Noélia Maria; Lopes Rodrigues,Karla Emanuelle; Mota,Vanessa Benigno; Amstalden,Eliane Maria Ingrid. |
| Twelve adult male Wistar rats (220 g average weight) were divided in 3 experimental groups: GI -15. GII 30 and GIII 60 days, after mandibular molar extraction, with three experimental animals and one control per group. Qualitatively, ultrastructural changes of protein filaments from myofibrils of these muscles and ipsilateral to the extractions were observed. Ultrastructure asymmetry and disorganization of Z line and I band, in the experimental group GII, of Medial Pterigoid muscle (MPT) were observed. The temporomandibular dysfunction, stimulated by the unilateral extractions of mandibular molars in rats may lead to modifications in the Z line and I band, which showed to be sensitive to this dysfunction. Changes in the MPT muscle, probably related to... |
| Tipo: Journal article |
Palavras-chave: Skeletal muscular fibre; Masticator muscles; Occlusal alterations; Temporomandibular joint; Transmission electron microscopy. |
| Ano: 2017 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022017000200007 |
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| Registros recuperados: 17 | |
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